ARM: dts: vf-colibri: add USB regulators

Add structure of USB supply logic. The USB hosts power enable
regulator is needed to control VBUS supply on the Colibri carrier
board.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

diff --git a/arch/arm/boot/dts/vf-colibri-eval-v3.dtsi b/arch/arm/boot/dts/vf-colibri-eval-v3.dtsi
index 20251a3..56a452b 100644 (file)
--- a/arch/arm/boot/dts/vf-colibri-eval-v3.dtsi
+++ b/arch/arm/boot/dts/vf-colibri-eval-v3.dtsi
@@ -11,6 +11,34 @@
        chosen {
                bootargs = "console=ttyLP0,115200";
        };
+
+       regulators {
+               compatible = "simple-bus";
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               sys_5v0_reg: regulator@0 {
+                       compatible = "regulator-fixed";
+                       reg = <0>;
+                       regulator-name = "5v0";
+                       regulator-min-microvolt = <5000000>;
+                       regulator-max-microvolt = <5000000>;
+                       regulator-always-on;
+               };
+
+               /* USBH_PEN */
+               usbh_vbus_reg: regulator@1 {
+                       compatible = "regulator-fixed";
+                       pinctrl-names = "default";
+                       pinctrl-0 = <&pinctrl_usbh1_reg>;
+                       reg = <1>;
+                       regulator-name = "usbh_vbus";
+                       regulator-min-microvolt = <5000000>;
+                       regulator-max-microvolt = <5000000>;
+                       gpio = <&gpio3 19 GPIO_ACTIVE_LOW>;
+                       vin-supply = <&sys_5v0_reg>;
+               };
+       };
 };
 
 &bl {
@@ -62,3 +90,7 @@
 &uart2 {
        status = "okay";
 };
+
+&usbh1 {
+       vbus-supply = <&usbh_vbus_reg>;
+};

diff --git a/arch/arm/boot/dts/vf-colibri.dtsi b/arch/arm/boot/dts/vf-colibri.dtsi
index 43e7539..82f5728 100644 (file)
--- a/arch/arm/boot/dts/vf-colibri.dtsi
+++ b/arch/arm/boot/dts/vf-colibri.dtsi
@@ -176,5 +176,11 @@
                                VF610_PAD_PTD3__UART2_CTS               0x21a1
                        >;
                };
+
+               pinctrl_usbh1_reg: gpio_usb_vbus {
+                       fsl,pins = <
+                               VF610_PAD_PTD4__GPIO_83                 0x22ed
+                       >;
+               };
        };
 };